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ADA4940-1ACPZ-R7 数据表(PDF) 15 Page - Analog Devices

部件名 ADA4940-1ACPZ-R7
功能描述  Ultralow Power, Low Distortion, Fully Differential ADC Drivers
PDF  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADA4940-1ACPZ-R7 数据表(HTML) 15 Page - Analog Devices

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Data Sheet
ADA4940-1/ADA4940-2
Rev. D | Page 15 of 30
–20
–130
0.01
0.1
110
FREQUENCY (MHz)
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
VOUT, dm = 2V p-p
LFCSP: RL = 1kΩ
LFCSP: RL = 200Ω
SOIC: RL = 1kΩ
SOIC: RL = 200Ω
Figure 31. Spurious-Free Dynamic Range vs. Frequency at
RL = 200 Ω and RL = 1 kΩ
–20
–150
–2.5
2.5
VOCM (V)
–140
–130
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–2.0 –1.5 –1.0 –0.5
0
0.5
1.0
1.5
2.0
VOUT, dm = 2V p-p
HD2 AT 1MHz
HD2 AT 100kHz
HD3 AT 1MHz
HD3 AT 100kHz
Figure 32. Harmonic Distortion vs. VOCM for 100 kHz and 1 MHz,
±2.5 V Supplies (LFCSP)
–20
–130
0.01
0.1
1
10
FREQUENCY (MHz)
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
HD3 AT VOUT, dm = 8V p-p
HD2 AT VOUT, dm = 8V p-p
HD2 AT VOUT, dm = 4V p-p
HD2 AT VOUT, dm = 2V p-p
HD3 AT VOUT, dm = 2V p-p
HD3 AT VOUT, dm = 4V p-p
Figure 33. Harmonic Distortion vs. Frequency for Various VOUT, dm (LFCSP)
–140
–130
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
012
345
67
89
10
VOUT, dm (V p-p)
VS = ±1.5V HD3
VS = +3V, 0V HD3
VS = +3V, 0V HD2
VS = ±3.5V HD3
VS = ±2.5V HD3
VS = ±3.5V HD2
VS = ±1.5V HD2
f = 1MHz
VS = ±2.5V HD2
Figure 34. Harmonic Distortion vs. VOUT, dm for Various Supplies, f = 1 MHz
(LFCSP)
–20
–140
03.0
2.5
VOCM (V)
–130
–120
–110
–100
–90
–80
–70
–60
–50
–40
–30
0.5
1.0
1.5
2.0
+VS = +3V, –VS = 0V
VOUT, dm = 2V p-p
HD2 AT 1MHz
HD3 AT 1MHz
HD3 AT 100kHz
HD2 AT 100kHz
Figure 35. Harmonic Distortion vs. VOCM for 100 kHz and 1 MHz, 3 V Supply
(LFCSP)
–20
–140
0.01
0.1
1
10
FREQUENCY (MHz)
–120
–130
–110
–100
–90
–80
–70
–60
–50
–40
–30
VOUT, dm = 2V p-p
HD3, RF = RG = 499Ω
HD2, RF = RG = 499Ω
HD3, RF = RG = 1kΩ
HD2, RF = RG = 1kΩ
Figure 36. Harmonic Distortion vs. Frequency for Various RF and RG (LFCSP)



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